Giveall

package com.elitios.elitiosplugins.commands;

import com.elitios.elitiosplugins.ElitiosEssentials;
import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.command.TabCompleter;
import org.bukkit.entity.Player;
import org.bukkit.inventory.ItemStack;
import org.bukkit.util.StringUtil;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

public class CommandGiveAll implements CommandExecutor, TabCompleter {

    @Override
    public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {

        if (!(sender instanceof Player)) return true;
        final Player player = (Player) sender;
        final ItemStack item = player.getInventory().getItemInMainHand();

        if (player.hasPermission("me.giveall")) {
            if (args.length == 0) {

                if (item.getType() == Material.AIR) {
                    player.sendMessage(ElitiosEssentials.matouland + "§cVous n'avez aucun item dans votre main !");
                    return false;
                }

                if (item.getType() == Material.COMMAND_BLOCK || item.getType() == Material.COMMAND_BLOCK_MINECART || item.getType() == Material.BARRIER || item.getType() == Material.LEGACY_BARRIER || item.getType() == Material.DEBUG_STICK || item.getType() == Material.STRUCTURE_BLOCK || item.getType() == Material.CHAIN_COMMAND_BLOCK || item.getType() == Material.REPEATING_COMMAND_BLOCK) {
                    player.sendMessage(ElitiosEssentials.matouland + "§cVous ne pouvez pas giveall des commandes blocks !");
                    return false;
                }

                for (Player all : Bukkit.getOnlinePlayers()) {
                    final ItemStack all2 = player.getInventory().getItemInMainHand();
                    all.getInventory().addItem(all2);
                    all.sendMessage(ElitiosEssentials.matouland + "§aVous venez de recevoir §6" + player.getInventory().getItemInMainHand().getType().toString() + " §aen quantité §6" + player.getInventory().getItemInMainHand().getAmount());
                }

                for (Player staff : Bukkit.getOnlinePlayers()) {
                    if (staff.hasPermission("me.giveall.alert")) {
                        staff.sendMessage("§7[" + ChatColor.DARK_GRAY + player.getName() + " §7a donné §8" + player.getInventory().getItemInMainHand().getType().toString() + " §7en quantité §8" + player.getInventory().getItemInMainHand().getAmount() + "§7]");
                    }
                }

            }

            if (args.length == 1) {
                if (args[0].equalsIgnoreCase("info")) {
                    player.sendMessage(ElitiosEssentials.matouland + "§6Vous permet de faire un giveall d'un item à tous les joueurs présent sur le serveur évent");
                }
            }

        } else {
            player.sendMessage(ElitiosEssentials.matouland + "§cL'accès à la commande vous a été refusé !");
        }

        return true;
    }

    @Override
    public List<String> onTabComplete(CommandSender sender, Command cmd, String label, String[] args) {
        if (args.length == 1) {
            return StringUtil.copyPartialMatches(args[0], Arrays.asList("info"), new ArrayList<>());

        } else if (args.length == 2) {
            return null;
        }
        return Collections.emptyList();
    }
}